package com.rran.study.designpattern.behavioral.observer.service;

import com.rran.study.designpattern.behavioral.observer.event.PlaceOrderEvent;

/**
 * @author yy
 * @Type PlaceOrderObserver.java
 * @Desc
 * @date 2020/7/21 17:32
 */
public interface PlaceOrderObserver {

    /**
     * 触发下单操作
     */
    void actionPlaceOrder(PlaceOrderEvent e);

}
